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Thomases Honors Biology Name: Per Mitosis Worksheet & Diagram Identification Label the parts of the cell cycle diagram and briefly describe what is happening: A B C D E F G H I J The Cell Cycle (Phases are in order) Interphase Prophase Metaphase Anaphase Telophase Interphase 1. Chromosomes move to the middle of the cell during what phase? 2. What are sister chromatids? 3. What holds the chromatids together? 4. When do the sister chromatids separate? 5. During which phase do chromosomes first become visible? 6. During which phase does the cleavage furrow start forming? Complete the table by checking the correct column for each statement. Statement 7. Cell growth occurs 8. Nuclear division occurs 9. Chromosomes are finishing moving into separate daughter cells. 10. Protein production is high 11. Chromosomes are duplicated 12. DNA synthesis occurs 13. Cytoplasm divides immediately after this period 14. Mitochondria and other organelles are made. Interphase Mitosis The Animal Cell Cycle – Phases are out of order for questions 15 - 21 15. Which cell is in metaphase? _____________________________________ 16. Cells A and F show an early and late stage of the same phase of mitosis. What phase is it? _____________________________________________________ 17. In cell A, what is the structure labeled X? __________________________ 18. In cell F, what is the structure labeled Y? ______________________ 19. Which cell is not in a phase of mitosis? ________________________ 20. A new membrane is forming in B. What is this phase called? _______________ 21. Sequence the six diagrams in order from first to last. ___________________________________ 22. What is the end product of mitosis? _____________________________________________________ 23. If the original cell has 46 chromosomes, how can each new daughter cell also have 46 chromosomes? __________________________________________________________________________________ 24. What is the main difference between cell division in plants and animals? ______________________ 25. What is the purpose of mitosis? 26. Differentiate internal regulatory factors and external regulatory factors. 27. List 7 internal and external factors which can affect or control the rate of cell division: a. e. b. f. c. g. d. 28. When the rate of the cell cycle gets out of control, this happens: _________________ Identify which stage of mitosis each lettered plant cell is in: C . B A A. _________________ B. _________________ C. ________________ D. _________________ E. _________________ D E